BTC [Bitcoin] Token

Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

Bitcoin.totalSupply (#84) shadows:
- ERC20Basic.totalSupply (#55)
Remove the state variable shadowing.

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Not a direct threat, but may indicate unreliable intentions of developer. Widespread names (e.g. Elon, King, Moon, Doge) are common among meme-tokens and scams. The allow to gain free hype and attract unexperienced investors.

Bitcoin.getTokens() (#179-237) performs a multiplication on the result of a division:
-tokens = tokensPerEth.mul(msg.value) / 1000000000000000000 (#187)
-countbonus = tokens * 10 / 100 (#192)
Bitcoin.getTokens() (#179-237) performs a multiplication on the result of a division:
-tokens = tokensPerEth.mul(msg.value) / 1000000000000000000 (#187)
-countbonus = tokens * 10 / 100 (#200)
Bitcoin.getTokens() (#179-237) performs a multiplication on the result of a division:
-tokens = tokensPerEth.mul(msg.value) / 1000000000000000000 (#187)
-countbonus = tokens * 2 / 100 (#202)
Bitcoin.getTokens() (#179-237) performs a multiplication on the result of a division:
-tokens = tokensPerEth.mul(msg.value) / 1000000000000000000 (#187)
-countbonus = tokens * 2 / 100 (#194)
Bitcoin.getTokens() (#179-237) performs a multiplication on the result of a division:
-tokens = tokensPerEth.mul(msg.value) / 1000000000000000000 (#187)
-countbonus = tokens * 0 / 100 (#196)
Consider ordering multiplication before division.

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Bitcoin.transferOwnership(address) (#125-129) should emit an event for:
- owner = newOwner (#127)
Emit an event for critical parameter changes.

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Bitcoin.getTokens() (#179-237) uses timestamp for comparisons
Dangerous comparisons:
- msg.value >= requestMinimum && now < deadline && now < round1 && now < round2 (#190)
- msg.value >= requestMinimum && now < deadline && now > round1 && now < round2 (#198)
- now >= deadline && now >= round1 && now < round2 (#220)
Avoid relying on block.timestamp.

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Bitcoin.getTokens() (#179-237) compares to a boolean constant:
-Claimed[investor] == false && progress0drop <= target0drop (#212)
Remove the equality to the boolean constant.

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Bitcoin.Distribute(address,uint256) (#146-160) has costly operations inside a loop:
- totalDistributed = totalDistributed.add(_amount) (#151)
Bitcoin.Distribute(address,uint256) (#146-160) has costly operations inside a loop:
- distributionFinished = true (#154)
Use a local variable to hold the loop computation result.

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SafeMath.div(uint256,uint256) (#24-29) is never used and should be removed
Remove unused functions.

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Pragma version^0.4.25 (#1) allows old versions
solc-0.4.25 is not recommended for deployment
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

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Parameter Bitcoin.distr(address,uint256)._to (#137) is not in mixedCase
Parameter Bitcoin.distr(address,uint256)._amount (#137) is not in mixedCase
Function Bitcoin.Distribute(address,uint256) (#146-160) is not in mixedCase
Parameter Bitcoin.Distribute(address,uint256)._participant (#146) is not in mixedCase
Parameter Bitcoin.Distribute(address,uint256)._amount (#146) is not in mixedCase
Function Bitcoin.DistributeAirdrop(address,uint256) (#162-164) is not in mixedCase
Parameter Bitcoin.DistributeAirdrop(address,uint256)._participant (#162) is not in mixedCase
Parameter Bitcoin.DistributeAirdrop(address,uint256)._amount (#162) is not in mixedCase
Function Bitcoin.DistributeAirdropMultiple(address[],uint256) (#166-168) is not in mixedCase
Parameter Bitcoin.DistributeAirdropMultiple(address[],uint256)._addresses (#166) is not in mixedCase
Parameter Bitcoin.DistributeAirdropMultiple(address[],uint256)._amount (#166) is not in mixedCase
Parameter Bitcoin.updateTokensPerEth(uint256)._tokensPerEth (#170) is not in mixedCase
Parameter Bitcoin.balanceOf(address)._owner (#239) is not in mixedCase
Parameter Bitcoin.transfer(address,uint256)._to (#248) is not in mixedCase
Parameter Bitcoin.transfer(address,uint256)._amount (#248) is not in mixedCase
Parameter Bitcoin.transferFrom(address,address,uint256)._from (#259) is not in mixedCase
Parameter Bitcoin.transferFrom(address,address,uint256)._to (#259) is not in mixedCase
Parameter Bitcoin.transferFrom(address,address,uint256)._amount (#259) is not in mixedCase
Parameter Bitcoin.approve(address,uint256)._spender (#272) is not in mixedCase
Parameter Bitcoin.approve(address,uint256)._value (#272) is not in mixedCase
Parameter Bitcoin.allowance(address,address)._owner (#279) is not in mixedCase
Parameter Bitcoin.allowance(address,address)._spender (#279) is not in mixedCase
Parameter Bitcoin.withdraw(uint256)._wdamount (#295) is not in mixedCase
Parameter Bitcoin.burn(uint256)._value (#300) is not in mixedCase
Parameter Bitcoin.add(uint256)._value (#309) is not in mixedCase
Parameter Bitcoin.withdrawForeignTokens(address)._tokenContract (#316) is not in mixedCase
Variable Bitcoin.Claimed (#75) is not in mixedCase
Constant Bitcoin.requestMinimum (#86) is not in UPPER_CASE_WITH_UNDERSCORES
Follow the Solidity naming convention.

Additional information: link

Bitcoin.constructor() (#119-123) uses literals with too many digits:
- companyFund = 2100000e18 (#120)
Bitcoin.slitherConstructorVariables() (#68-322) uses literals with too many digits:
- totalSupply = 21000000e18 (#84)
Bitcoin.slitherConstructorVariables() (#68-322) uses literals with too many digits:
- progress0drop = 0.00000001e18 (#90)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

Bitcoin.target0drop (#89) should be constant
ERC20Basic.totalSupply (#55) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

balanceOf(address) should be declared external:
- ForeignToken.balanceOf(address) (#50)
transfer(address,uint256) should be declared external:
- ForeignToken.transfer(address,uint256) (#51)
balanceOf(address) should be declared external:
- Bitcoin.balanceOf(address) (#239-241)
- ERC20Basic.balanceOf(address) (#56)
transfer(address,uint256) should be declared external:
- Bitcoin.transfer(address,uint256) (#248-257)
- ERC20Basic.transfer(address,uint256) (#57)
allowance(address,address) should be declared external:
- Bitcoin.allowance(address,address) (#279-281)
- ERC20.allowance(address,address) (#62)
transferFrom(address,address,uint256) should be declared external:
- Bitcoin.transferFrom(address,address,uint256) (#259-270)
- ERC20.transferFrom(address,address,uint256) (#63)
approve(address,uint256) should be declared external:
- Bitcoin.approve(address,uint256) (#272-277)
- ERC20.approve(address,uint256) (#64)
transferOwnership(address) should be declared external:
- Bitcoin.transferOwnership(address) (#125-129)
finishDistribution() should be declared external:
- Bitcoin.finishDistribution() (#131-135)
updateTokensPerEth(uint256) should be declared external:
- Bitcoin.updateTokensPerEth(uint256) (#170-173)
getTokenBalance(address,address) should be declared external:
- Bitcoin.getTokenBalance(address,address) (#283-287)
withdrawAll() should be declared external:
- Bitcoin.withdrawAll() (#289-293)
withdraw(uint256) should be declared external:
- Bitcoin.withdraw(uint256) (#295-298)
burn(uint256) should be declared external:
- Bitcoin.burn(uint256) (#300-307)
add(uint256) should be declared external:
- Bitcoin.add(uint256) (#309-313)
withdrawForeignTokens(address) should be declared external:
- Bitcoin.withdrawForeignTokens(address) (#316-320)
Use the external attribute for functions never called from the contract.

Additional information: link

Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.

Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.

Token is deployed only at one blockchain

Token has only one trading pair

Unable to find PancakeSwap trading pair to compute liquidity.

Unable to find PancakeSwap trading pair to compute volume.

Unable to find PancakeSwap trading pair to compute number of swaps.

Unable to find website, listings and other project-related information

Token has a considerable age, but we're still unable to find its website

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank

Token has a considerable age, but social accounts / website are missing or have few users

Token has a considerable age, but average PancakeSwap 30d trading volume is low